Edge-guided scribing gauge



March I, 192I HALLGREN 1,847,481

EDGE GUIDED SCRIBING GAUGE Filed March 3, 1927- Patented Mar. 1, 1932 UNETED STATES EARL HALLGREN, OF DES ILAINES, ILLINOIS EDGE-GUIDED SCRIBING GAUGE Application filed March 3,

The invention relates to gauges for use in outliningmortises on doorsand door casings for the reception of hinges,,locks, etc.

-The invention has as one'of its primeobjects the provision of a construction whereby Said device will be guided during the cutting or delineation of the mortise and be prevented against deviation from its course during the delineation of the mortise.

Another feature of the invention is the provision of a device of this character with means whereby an edge, such as the edge of a door, may be arranged between said means to thereby hold the device in its proper relation to the door during use of the device-in outlining a mortise for a look at this part of the door.

It is also an object to provide the above mentioned means between whichthe edge of 29 the door isadapted tov be located with elements having cutters, the elements and said means being adjustable relatively to each other to allow the elements of the device to be arranged to permit its use in various other capacities.

It is a further object to provide a device'of this character with transversely arranged elements having scribers, the elements being movable relatively to each other and adjustable with respect to said means.

The invention has these and other objects, all of which will beexplained in detail and more readily understood when read in conjunction with the accompanying drawings which illustrate one form of which the in vention is susceptible, it being obvious that changes and modifications may be resorted to without departing from the spirit of the appended claims forming a part hereof.

In the drawings, 1

Fig. 1 is a frontelevation of the device showing itapplied to the edge of a door and arranged to outline. a mortise for the recepr tion of a lock to be arranged in this portion of the door;

Fig. 2 is an end view of the structure shown in Fig. l; a

Fig. 3 illustrates the structure shown in Fig. 1, the elements being arranged in a changed position and showing it applied for 1927. Serial No. 172,226.

use in forming a mortise for a hinge in the casing of a door;

Fig. 4 illustrates the device associated with a rabbeted jamb to form a mortise therein;

be inserted. These blocks 10 and 11 are mounted uponrods 12 and 13, the blocks and rods being slidable with respect to each other. These rods 12 and 13, are provided with scribers, such as 14, at the opposite ends thereof, the blocks being held with relation to the rods by means of the set screws 15 and.

The blocks or guides 10 and 11 provide a means or support for elements 17 and 18 which are also slidable within the blocks.

These elements 17 and 18 are also provided with scribing elements 19 and 20 and are employed to provide means whereby a mortise may be outlined in the edge of a door for the reception of a lock. These elements 17 and '18 are adjustable relatively to the guides 10 and 11 so that they may be adjusted todefine or outline openings of various sizes to receive locks'of different dimensions. The guides 10 and 11 extend beyond-the rods 12 and elements such as 17 and 18, and when applied to the edge of'adoor will overlap the same and guide and maintain the device in its proper relation during movement thereof while marking the door for the mortise.

The elements 17 and 18 are held-in their- 7 ISO with a transverse bore 23 within which is located a marker 24 having its opposite ends provided with scribers 25 and 26. The marlier 24 is held in various positions of adjustment within the bore through the medium of a thumb screw 27. A slot 28 communicates with the bore and is provided to allow the cutter 26 to travel the-rein during'ac'ljustment of the marker 24.

By referring to Fig. 3, it will be evident that the guides 10 and 11 are adapted to be moved relatively to each other so that they may be arranged in the manner shown with the rod 12 projecting asubstantial distance therefrom. When the elements are arranged in the manner shown, one of the blocks is arranged so that the side face thereof abuts against a shoulder 29 formed in the door casing, the shoulder forming a guide against which the block may rest while forming a line in the face -of the casing. It is, of-course, understood that the cutters,-such as 19 and 20, provided upon the elements 17 and 18 are arranged so that they point in a direction oppo- Site to that of the cutter provided upon the rod 12 producing the mark.

Fig. 4 illustrates the manner in which the marker 24 is arranged when marking a rabbeted jamb for. a mortise to receive a hinge at this portion of the door 1' amb. When the device is arranged in this manner, the face thereof, such as 30. is arranged against the shoulder 31 of the door frame which will act as a guide during the markingof the frame. \Vhen it is desired to use the device to mark the edge of a door for the formation of a mortise therein to receive a hinge, the opposite end of the marker 24 is employed, the end heingadjusted relatively to the block or guide 11 so that the distance from the end of the marker to the opposite face of the door will correspond to the width of the hinge which it is desired to apply to the door and the device will 'be brought against the face of the door and moved longitudinally thereof, which will cause a mark to be produced in the door along which the material may be removed to form the mortise in the door for the reception of the hinge.

From the foregoing description, it is manifest that the rods or bars 12 and 13 provide supports for the blocks or guides, and that these supports may be adjusted relatively to the blocks to compensate for various contingencies with which one may be confronted during the use of the device.

which carry them so that the distance between the ends of these members may be varied. It is also evident that the blocks may be arranged upon the bars so that they assume the position thereof shown in Figs. 3 and 5, and that said blocks may be moved with relation It is further evident that the elements 17 and 18 may be adjusted relatively to the respective blocks to the bars to any desired position along their lengths.

From the foregoing description, it is evi dent that a structure is provided which is particularly adapted for use in providing a delineation in the edge of a door and which positively prevents the device from moving from its proper path during this operation, and produces a device which eliminates any possibility of deviation from a line which the device is adapted to produce, defining the outline of a mortise for the reception of a lock.

Having thus described my invention, What I claim as new and desire to cover by Letters Patent is:

1. In a device .of the class described-the combination of a pair of guide members, a support upon which the guide members are movably mounted, shanks each carrying scribing members carried by one of said guide members, said shanks being slidable with their longitudinal axes arranged transversely to each other in said member.

2. In a device of the kind described, the combination of a support comprised of a plurality of relatively movable members having scribing means, a pair .of guide members mounted upon the support, elements having scribing means, said elements being mounted in one of said guide members and being arranged transversely to each other and being movable relatively to each other, one of said elements being arranged adjacent an end of the guide member and said guide member having means whereby the scribing means of said last mentioned element may be arranged atvarious positions between the extremities of said end of the support.

3. In a device of the kind described, the combination of a support, guide members adjustably mounted upon the support, an element having scribing means arranged at one end of one of the guide members and being movable transversely of the guide member, said guide member having means whereby said scribing means may be arranged at various positions between the extremities of said end of the guide member.

4. In a device of the kind described, the combination of a support, guide members adjustably mounted upon the support, an element having scribing means arranged at one end of one of the guide members and being movable transversely of the uide member, said guide member having means whereby said scribing means may be arranged at various positions between the extremities of said end of the support, and an element having scribing means, said element being arranged insaidguidemembertransversely to said first mentioned element and being movable relatively to said guide member.

5. In a device of the kind described, the combination of a support, guide members mounted upon the support, said guide members being movable upon said support relatively to each other, one of said guide members having elements arranged transversely to each other and said elements being movable endwise and relatively to said member, said transversely arranged elements having scribing means, one 01": said elements being arranged adjacent an end of the guide member and said guide 10 member having a slot in Which a scribing melans of said last mentioned element is movab e.

In Witness whereof, I hereunto subscribe my name this 28th day of February A. 1).,

EARL HALLGREN. 

